Six-wheel truck



NQ MIN \N April 30, 1929. c. B. HARBisoN A SIX-WHEEL TRUCK Filed Feb. 27, 192B` It t) Patented Apr. 30, 1929.

UNITED STATES PATENT OFFICE.

CLARENCE B. HARBISON, OF LIMA, OHIO, ASSIGNOR T0 OHIO STEEL FOUNDRY COH- PANY, OF LIMA, OHIO, A. CORPORATION OF OHIO.

Application led February 27, 1928. Serial No. 257,161.

This invention relates to improvements in equalized railway trucks, and has for its principal object to provide a new and improved construction of the character de scribed, wherein the equalizers are readily accessible for inspection and replacement. (ilther objects ot my invention will appear irom time to time as the description pro reeds.

The invention may best be understood by reference to the accomlianying drawing, in which Figure 1 is a side view of a six-wheel truck constructed in accordance with my invention, with parts broken away to show the interior construction thereof,

Figure 2 is a fragment-ary plan view showing one end of the truck, with parts ot the frame broken a 'ay.

'leterring to details of the drawing, the same illustrate my invention as applied to a six-wheel, or three axle truck, comprising side iframes 10, each having three pedestals 11, 11, 11, and cross connected as usual by a pair of transoms 12, and end frame mem bers 13. The wheel axles, and their journal boxes are not shown in detail, as they 'lorm no part of the invention.

Each side `frame is formed with inner and outer upright walls and 16 respectively, between. which are mounted leaf springs 1T, 1T, above each of the pedestals 11, 11, in position to have supporting engagement on the several journal boxes in the usual manner. The lower wall 2() ot the side frame 1U between adjacent pedestals is arched or re eessed upwardly as shown, and at the central point of each recessed portion is a tulcrum bearing beneath which equalizer bars 1S, are engaged. The central portions of said eiluulizcers are thus disposed in readily accessible position below the side frame, while the ends curve upwardly through apertures 23. 23, into the side trame, where they are connected by pins 21, 21, to vertically disposed spring hangers 24, 24, which engage over adjacent ends of springs 17, 17. A vertical eros.; web is provided between the side walls 1 5. 16 above each fulcrum bearing 22,

thus affording desired strength at this point. Access to the springs 17 and hangers 2:1. may be provided through apertures 26, 27, suitably disposed in the side walls 15, 16, respectively.

A construction as above described affords the advantage ot ready accessibility of the equalizer bar for inspection or removal. The pivot pins 21 at opposite ends of the equallzers are slightly higher than the fulcrum of their respective equalizer,` thereby affording a more stable arrangement than in prior constructions, where the equalizer' bar is fulcrumed within and near the top of the hollow side frame. Said equalizer' is removable by simply withdrawing hanger pins 21, 21, at opposite ends, and then with dropping one end through the aperture 23, whereu on the opposite end may then be similarly Withdrawn.

Although I have illustrated and described one particular embodiment of my invention, it will be understood that I do not wish to be limited to the exact construction shown and described, that that various changes and modifications may be made Without departing from the spirit and scope of my invention.

I claim as my invention: 1. In a truck, a side frame having laterally spa-ced side walls, and longitudinally spaced pedestals with upwardly extending reso cesses therebetween, equalizing means extending above said pedestals between said` side walls, and intermediate connecting equalizers fulcrumed in said recesses beneath said frame.

2. In a truck, a side frame having laterally spaced side walls, and longitudinally spaced pedestals with upwardly extending recesses therebetween, equalizing means extending above said pedestals between said side walls, and intermediate connecting equab iz/.ers fulcrumed in said recesses beneath said iframe, and vertically disposed reinforcing webs connecting said side walls above the fulerum points of said equalizers.

Signed at Chicago, Ill., this 24th day of February, 1928.

CLARENCE B. HARRISON. 

